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Alla [95]
2 years ago
11

Do all circles have all right angles? Yes or no​

Mathematics
1 answer:
Zarrin [17]2 years ago
6 0

Answer:

They do

Step-by-step explanation:

Both have 4 90 degree (right) angles.

A triangle has 3 sides and 3 angles. The angles of a triangle always add up to 180 degrees.The “angle” of a circle is 360 degrees – all the way around.

Hope this helps (Sometimes i think circles don't have any angles at all)

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Can anyone help me with this question​
Lina20 [59]

Answer:

78

idont know

5 0
2 years ago
Mrs.Lynch has noted that 7 out of every 10 pieces of mail she gets are junk mail. What percent of her mail is junk?
AlladinOne [14]

Answer:

70%

Step-by-step explanation:

create fraction pieces/whole.

7 0
2 years ago
What is the solution of the system of equations? -4x+3y=-12 -2x+3y=-18
Kisachek [45]

Answer:

Step-by-step explanation:

I've enclosed a graph to show you that there is one solution.

-4x + 3y = - 12

<u>- 2x + 3y = - 18</u><em><u>  </u></em><em>         </em>Subtract

-2x = 6                        Divide by - 2

-2x/-2 = 6/-2

x = - 3

- 4x + 3y = - 12

-4(-3) + 3y = - 12

12 + 3y = - 12

3y = - 12 - 12

3y = - 24

3y/3 = - 24/3

y = - 8

Which is exactly what the graph shows.

You can tell immediately that this has 1 or more solutions just by looking at the number in front of x and y in each each equation.

It's always a good idea to graph a question like this one. Desmos is a pretty good tool to use if you don't have a graphing calculator.

The y's are the same so you are 1/2 way home in saying what you did.

The x's are different so that means you have at least 1 solution.

7 0
3 years ago
Enter your answer as a decimal. Round ONLY your final a answer to the nearest tenth.
ki77a [65]
39.7

Work
1/2x12x8xsin(65)
7 0
2 years ago
Which has the least absolute value?<br> a. –50<br> b. –10<br> c. 30<br> d. 5
Mnenie [13.5K]
-50 because its the furthest away from zero
7 0
3 years ago
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